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Theophylline, also known as 1,3-dimethylxanthine, is a drug that inhibits phosphodiesterase and blocks adenosine receptors. [1] It is used to treat chronic obstructive pulmonary disease (COPD) and asthma . [ 2 ]
Pregnancy category: D [1] Identifiers; ... 8057-98-5; PubChem CID: 3080648; Tedral, or theophylline/ephedrine ... Other mechanisms of action of theophylline have also ...
The metabolism of caffeine is reduced in pregnancy, especially in the third trimester, and the half-life of caffeine during pregnancy can be increased up to 15 hours (as compared to 2.5 to 4.5 hours in non-pregnant adults). [79] Evidence regarding the effects of caffeine on pregnancy and for breastfeeding are inconclusive. [26]
5.4 Unknown duration of action. 6 Research. 7 Society and culture. 8 See also. 9 References. 10 External links. Toggle the table of contents. Beta 2-adrenergic ...
Pregnancy category: AU: B3; Routes of ... and theophylline), ... Other related compounds generally have a shorter duration of action and have to be administered twice ...
[5] [6] The onset of action of cimetidine when taken orally is 30 minutes, [8] and peak levels occur within 1 to 3 hours. [5] Cimetidine is widely distributed throughout all tissues . [ 7 ] It is able to cross the blood–brain barrier and can produce effects in the central nervous system (e.g., headaches , dizziness , somnolence ). [ 2 ]
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Duration of action: ≤8 hours [7 ... Use during pregnancy or breastfeeding is ... Administration of theophylline or aminophylline has been shown to reduce the ...